Conformational aspects of some 5β-methyl-19-nor-steroids
Abstract
The stereochemistry of the allylic alcohol (2) and of the epoxy-ketone (3) in the Westphalen-type rearranged steroid series has been elucidated. The n.m.r. spectra of various new and known compounds have been analysed, thus demonstrating the remarkable conformational flexibility of ring B in this series.
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